Table 3 Care practices of the study population.

From: Care Practices, Morbidity and Mortality of Preterm Neonates in China, 2013–2014: a Retrospective study

Characteristic

24–27 weeks n = 148)

28–31 weeks (n = 1612)

32–33 weeks (n = 2460)

34–36 weeks (n = 9481)

Total (N = 13701)

F/χ2

p

Pulmonary surfactant

85 (57.4)

658 (40.8)

443 (18.0)

307 (3.2)

1493 (10.9)

2517.415

0.000

Any high-frequency ventilation or conventional ventilation

83 (56.1)

574 (35.6)

379 (15.4)

365 (3.8)

1401 (10.2)

1962.105

0.000

Any nasal SIMV or CPAP therapy

53 (35.8)

780 (48.4)

779 (31.7)

871 (9.2)

2483 (18.1)

1840.568

0.000

Nasal SIMV or CPAP therapy highest*

12 (8.1)

392 (24.3)

521 (21.2)

650 (6.9)

1575 (11.5)

689.484

0.000

  1. *Highest level of support was defined for nasal SIMV as never used conventional for high-frequency ventilation but used nasal SIMV, and for CPAP as never used conventional or high-frequency ventilation or nasal SIMV but received CPAP therapy.
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